He served as the art director of the Works Progress Administration's (WPA) Federal Art Project (FAP) New York City poster division and then went on to illustrate numerous books.

[4] In 1936 Floethe became the art director of the New York City poster division of the Works Progress Administration's (WPA) Federal Art Project (FAP).

He hired the artist Anthony Velonis who introduced the silk-screening process into the program as a way to produce posters.

[3] He is also noted for creating a wordless novel, Summer Holiday, published by The Brookdale Press in 1939[6].

Floethe's work was included in the 1944 Dallas Museum of Art exhibition of the National Serigraph Society.